A fluorophore-labeled human cell. A fluorophore (or fluorochrome, similarly to a chromophore) is a fluorescent chemical compound that can re-emit light upon light excitation. Fluorophores typically contain several combined aromatic groups, or planar or cyclic molecules with several Ï bonds.
IN THIS TOPIC. Pregnancy symptoms are different for everyone, and can vary from month to month and even from pregnancy to pregnancy. Find out what to expect, from the earliest pregnancy symptoms to the wooziness of morning sickness to the aches and pains of your third trimester.
Morning sickness is a famous symptom of pregnancy. But not every pregnant woman gets it. The exact cause of morning sickness is not known but pregnancy hormones likely contribute to this symptom. Nausea during pregnancy may occur at any time of the day but most commonly in the morning.